function openWF() {
	var twidth = 404;
	var theight = 384;

	if(twidth > screen.width-40) twidth = screen.width - 40;
	if(theight > screen.height-40) theight = screen.height - 40;

	var pos_x = (screen.width-twidth-10) / 2;
	var pos_y = (screen.height-theight-29) / 2;

	window.open('http://www.heilbad.at/?id=183','WF','menubar=0,status=0,resizable=0,width='+twidth+',height='+theight+',screenX='+pos_x+',screenY='+pos_y+',left='+pos_x+',top='+pos_y);
}